Orianna, Dark Star caster

You can play cards you own from exile.
Cards you own in exile cost {2} less to cast.
Orianna, Dark Star caster isn't a creature as long
as your deviotion to Red, Black and blue is less
than seven.
Triumvirate: If you choose Orianna, Dark Star
caster to be your commander, you can choose
two other Legendary creature with the same
colors. If you do so, consider those cards having
the partner ability. Also consider Orianna, Dark
Star caster having the partner hability.